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| High performance fuses |
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Type IB
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rated voltage [kV] |
3 - 52 |
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rated current [A] |
2,5 - 250 |
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insulator length H [mm] |
169 - 712 |
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contact diameter [mm] |
45 / 55 / 60 / 80 / 92 |
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Our
medium voltage short circuit current limiting fuses are
automatic and selectively acting switching devices for
voltages from 3 to 52 kV.
With their extremely fast short-circuit interruption they reliably protect transformers,
motors, cables, capacitors and switching installations against the thermal and
dynamic effects of short circuits.
Our fuses are designed for installation in
- air and gas-insulated indoor switchgear
systems
- outdoor switchgear systems
- oil-immersed transformers
- troublesome climates
All fuses are made with porcelain tubes which are glazed
brown for indoor and outdoor use. Inside the parallel
connected fuse elements are made of pure silver. Design
and manufacturing method of the reduced cross section
areas ensure a close characteristic tolerance. The fuse
elements are wound onto a star-shaped ceramic support
and are welded to the silver plated ferrules. The copper
ferrules are mechanically connected to the porcelain
tube and sealed using a permanent elastic sealing.
Their electrical and mechanical characteristics comply
to DIN 43625 and IEC 60282-1 certified at CESI laboratory
(only type IB-D1/2/3)
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| Advantages |
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Big
operating range |
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Very compact design e.g. 36kV fuses
with 24kV dimensions |
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Very low power
losses |
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Exceeded water
tightness |
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Trouble free operation for more than
30 years |
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Computerized quality control |
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Performance characteristics beyond limits
stated in applicable specifications |
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| Some
Technical Features |
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Striker pin with impact
force of 20 N at 20mm distance |
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Integrated thermal protection as standard |
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Indoor and outdoor fuse holders available |
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Big range of accessories |
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